Hsu Research is proud to introduce to you the VTF-1 Mk3! The VTF-1 Mk3 improves on the performance of the, already well reviewed, VTF-1 Mk2 at a lower price point. Once again we are giving you even better bang for your buck! The VTF-1 Mk3 now features a front firing design with a 250w continuous amplifier. No more need to worry about spiked feet and how that may affect your hard floors. As always, our VTF series subs will feature our variable tuning technology, along with our variable Q and EQ controls, which allows you to better control the bass response and performance characteristics of the sub to fit your personal preference and room acoustics.

I would basically keep around the same estimates on our site (3000 cu ft). Though that's a very basic guidelines as there are many other variables that determine which sub would work best. We've had people that had a VTF-15H in a 2500 cu ft room and felt they needed two to meet their output needs and we've had ones that had an STF-2 in a 6000 cu ft room and that was enough for them. It just depends on your listening preferences, placement, openings, etc. Do you have a room diagram for both of those rooms?

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